• I replaced my old style tree lights that used 400watts. Over a month it would cost about $35 to $40 depending on your electric bill. These new LED bulbs use about 40watts or about 10 times less. That is about three or four dollars per month.

• More importantly it's less of a fire hazard because the bulbs aren't as hot. Plus, the bulbs last longer. Each of the LED bulbs is sealed in the fixture so moisture doesn't get in. The LED bulbs will last a very long time, ten to twenty years. They are definitely a lot safer.